Home / 19,315,991.81-26,629,433.18-15,409,008.57

Finding the Fourth Proportional to 19,315,991.81, 26,629,433.18 and 15,409,008.57

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Solution

The fourth proportional to 19,315,991.81, 26,629,433.18 and 15,409,008.57 is: 21,243,183.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315,991.81 : 26,629,433.18 = 15,409,008.57 : x
  2. Step 2: Convert to fraction form
    19,315,991.81/26,629,433.18 = 15,409,008.57/x
  3. Step 3: Cross multiply
    19,315,991.81x = 26,629,433.18 × 15,409,008.57
  4. Step 4: Simplify right side
    19,315,991.81x = 410,333,164,252,137.12
  5. Step 5: Solve for x
    x = 410,333,164,252,137.12/19,315,991.81
  6. Step 6: Final answer
    x = 21,243,183.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.